Added ApiResult Extensions.

network/data/src/main/kotlin/me/proton/core/network/data/ApiProvider.kt

@@ -44,7 +44,7 @@ class ApiProvider(
     ): ApiManager<out Api> = get(sessionProvider.getSessionId(userId))
 
     inline fun <reified Api : BaseRetrofitApi> get(
-        sessionId: SessionId? = null,
+        sessionId: SessionId? = null
     ): ApiManager<out Api> {
         // ConcurrentHashMap does not allow null to be used as a key or value.
         // If sessionId == null -> sessionName = "null".

network/domain/src/main/kotlin/me/proton/core/network/domain/ApiResult.kt

@@ -164,3 +164,25 @@ open class ApiException(val error: ApiResult.Error) : Exception(
     else error.cause?.message,
     error.cause
 )
+
+/**
+ * Performs the given [action] if this instance represents an [ApiResult.Error].
+ * Returns the original `Result` unchanged.
+ */
+inline fun <T> ApiResult<T>.onError(
+    action: (value: ApiResult.Error) -> Unit
+): ApiResult<T> {
+    if (this is ApiResult.Error) action(this)
+    return this
+}
+
+/**
+ * Performs the given [action] if this instance represents an [ApiResult.Success].
+ * Returns the original `Result` unchanged.
+ */
+inline fun <T> ApiResult<T>.onSuccess(
+    action: (value: T) -> Unit
+): ApiResult<T> {
+    if (this is ApiResult.Success) action(value)
+    return this
+}